Senate President John Cullerton says the bill has the 30 votes needed to pass and move to the House.

Support for marriage equality in Illinois has come from some unexpected corners, including hundreds of clergy, President Obama, Modern Family actor Jesse Tyler Ferguson, and even the leader of the Illinois GOP.

“Giving gay and lesbian couples the freedom to get married honors the best conservative principles. It strengthens families and reinforces a key Republican value – that the law should treat all citizens equally,” said Pat Brady, chair of the Illinois Republican Party.